Lock for motor vehicles



'A1-nf. 10, 1923.

A. GILSON LOCK FOR MOTOR VEHICLES sheet ../LLLLLALLLLVAA 2 sheets VIVI am Y

Filed June 1 11.920 l i wi wnnnnnnnn Apr. 1o, 1923. 1,451,039 A. GILSON l Loox Foa MOTOR VEHICLES Fild June y1, w20 2 sheets-sheetI 2 Patented Apr. l, i923.

'ARA GILSON, OF DETROIT, MICHIGAN, ASSIGNOR TO PACKARD'-1vIOTORv CAB, COMPANY` OF DETROIT, 1VIICHIGAN,'A CORPORATION OF'MICIIIGAN. f 1

y intime TNT ,ice-r LOCK FOR MOTOR VEHICLES.

Application flied June 1,

T 0 all 207mm. t may concern.'

Be it known that l', ARA GILsoN, a. citizen of the United States, and. resident vof De. troit, Wayne County, State of'lvlichiofan, have invented certain new and useful 1mprovements rin Locks `for Motor Vehicles, of which the following is a specification.

This invention relates `to motor vehicles, and particularly to-means for locking the gear shifting mechanism of such vehicles against movement. v l The invention in the embodiment lto be described is particularly adapted for' use in-connection with the type of gear shifting mechanism in which the gears are controlled by longitudinally shiftabl'e I elements `arranged substantially parallel to each other.

The invention has for its object to provide means forr securely locking the; shiftable elements of the gear shiftinor mechanism against movement and further to provide a construction which may be easily and readily actuated and may also be easily` released. c

Further objects will appear from theffollowing speccation Y taken `in connection with the drawings which form a part thereof and in which: *v v ,Fig vlis a vertical, sectional..` view illustra-ting the vlocking mechanism and showing the shifting lever'in side elevation;

Fig. 2 is: a transverse sectional view taken through the locking'mechanism; v

Fig. 3 is a horizontal sectional view showing-` the lockingfmember engaged with the shiftable elements;l

Fig. 4; is an enlarged sectional view showing the locking member in locking position; and f Figs. 5, 6, `and 7 'are enlarged, detail views illustratingfin planysection, and end elevation the construction ofthe latch member. f-

Turning now to the drawings, I have shown in Fig.'1, a portion of the gear casing for housing the transmission gear mechanism of a motor vehicle, the end walls being shown at and thev cover'for the :casing being shown'at 11. Y, The gear'shifting elements comprise a pair of tubular, longitudinally shi'ftable. rods 12 and 13', these rodsbeing slidably mounted in substantially parallel relation [with respect-to each other onl supporting bars 1,4, the latterbeing suitably supported on` the 1920., serial No. 385,465.

end walls 10 of the casing. yEach of the rods 12, 13, has a laterallyextending boss 15 andthese bosses house spring pressed plun-l gers 16 which, in turn engage ball'sl?,l the, latter being adapted to engage 'andseat in spherical depressions 1,8y formed in the supporting bars 14. j

Each of the shi'ftable elements has also formed thereon or secured thereto a depending gear shiftingv yoke orarm 19. The arms 19 engage, in a'well known manner`,the shiftable gears of the transmission mecha-v niSm. 'j i i in order to prevent the simultaneous shift-` ing ofv both tubular -rod-s 12, 513,*a reciprocable plunger 20" is slidably mounted-in a supporting member 21', carried by 'one of the end walls of the gear casing, the mem- .formed in the elements-12, 13. The meinber 2O is made' ofsuicient length .to permit one of the elements 12, .13'to be shifte'dvlon-A gitudinally but theengagementfof the outerV surface of theA shifted element with the corresponding end of .the member 2OzforcesA the .opposite end ofthismember into the,l notch 22 of the other element-[adjacent said env end to such an extentthat the longitudinal shifting of that element is prevented. The elements 12 and 13 are shifted inthe present instance 'by means of: a shiftingv ,A lever 23 of the usual construction, the lowerA end 2a ofy this lever being adapted tok engage notches 25 formed on the elements 12, l

11n Fig.` '3, the lower endll of theflever is shownu in neutral position. The member- 13, as shown in Fig., 3is providedv with la spring. pressed ball 26, which is adapted to engager endIQAC. yof. the ylever 4when the lever is shifted to ,a position inengagement. with the notch 25 of the member 13, thereby `preventing the leven from rattlingwhen the motor is running and thewehiele isbeing he construction above described isiccom-l mon in motor vehiclesand it` should ybe .understood that the locking mechanismL which will nextfbe described'is equally` well adapted 'for use in 'connection with-othertypes of shifting mechanism,l th'ej form illustrated being shown merely-for the purpose otdisclosing one practical embodiment of the invention. f Referring vparticularly to ll`ig.vl l, it,- -,will

be noted` that the-'cover 11 of the'gear casing is provided'withA an upwardly extending bracket or casing 27, this bracket housing a tubular casing or sleeve A28, in which the locking mechanism is mounted.`-`

larged as shown at 31: and is provided with av laterally extending lange-32 positioned intermediateV the upperend 31 and the lower end of the bolt.V

In order to prevent the removal ot' the bolt 29 and also to prevent the bolt from turning 4in the casing 28 a dowel 32 is carried by the upper end or' the casing 28 and engages', a longitudinally extending recess 33 formedy in the upper end 31 of the locking" bolt. The portion 31 of the bolt has formed therein" a transversely extending bore in which is slidably mounted a latchl member 34, shown in detail in Figs. tov, inclusive. The member 34 is substantially cylindrical in shape andis pro-- vided with longitudinal recess 35, which houses an actuating spring'w36, oneend oi this spring engaging the end wall of the recess andthe opposite end engaging the innerwall of the bolt casing 28. On its upperV surface the latch has formed an oblong recess or slot 37 and on., its lower surface' there is formed av projection 38.

In Figs. 1 and 2 the` locking mechanism isy shown in its unlocked position and the bolt 29r'is held in this position by means ot a coil spring 39, which engages the enlarged upper end' 31 of .the bolt, at one end of the spring, and the lower' end 40 of the casing 28, at its other end.` Inthe embodiment ot .the invention illustrated, the lower portion of the casing 28v is formed separately and the aperture above described is formed in this separate portion of the casing, this portionv being formed as a cap which is bolted as shownat41 to the upper portion of the casing, these bolts 41 passing thru a part of the upper portion of tbe casing 28 and'securing the? casing to the cover 11l so that itinay be removed only from the inside of the coyer.

The iiange" 32 which, as above described, is formed' on'bolt 29 constitutes a stop for limiting the upward movement lofthe bolt under the iiiiience of the 1 spring 39, the flange engaging the lower end of a bushing 42' which *isA `ltios'itioned 'inV a recess 43 formed iii theV casing'28. Thev projecting portion 38"* oftli'ej latchV 34 engages, in its,` unlocked pdsitio'n'; theb'ush-ing 42 just described, this ,'tif ctiii'lie A?, showninfFig; 1.

In@ order toretract the' -laitcli` 34 after Jthe locking mechanism has been placed in opeittve" psitin?, l have* provided a' barrel type of lock comprising a barrel 44 posi- Vcally lpositioned projecting portion k45, as

shown in Figs. 1 and 4.

The portion 450i the locking barrel 44 is positioned in the recess 37, 'formed in the upper surface of the latch 34 andas the barrel y44 is rotated by means of a suitable key, the portion 45 will engage `the latch and will retract the latch `from its locking position, shown in Fig. 4.

In order to inclose the lockingbarrel 44 and to form a suitable meansy for engagement by the operator in actuating` 'the mechanism, a cap 4G is hinged, as; shown at 47, to a bracketl 48 carried by the yupper end of the bolt 29. This cap isadapted to be held in closed or open position by means of the engagement of springl pressed' ball 49 with a suitable cam portionVr 50 formed on'bracket 48, a spring 51, for actuating the ball, being housed in a recess52 formed in the cap. y i

The lower end of the lockingbolt 29 engages recesses 53v formed on the` inner surfaces of the shittable elements 12 and 13, when these elements are in neutral position and by engaging these recesses, the bolt preventsvthe longitudinal shitting ofi!` these elements.

t InrFigs. l and 2, the locking mechanism is shown in inoperative position with the latch34 retracted' and engaging the inner surface of the bushing 42. ln order-teactuate the' locking mechanism, the cap 4G will be closed and the operator will press downwardly upon'this cap and thereby force the bolt or plunger 29 against thetension of the spring` 39 into a position in which the lower end of the bolt engages 'the lrecesses 53 formed in the shi'ftable elements 12 and 13. Yhen the bolt has been forced to this position, the latch 34 will be automatically pressed outwardly rby the spring 36 to a position in which the lower projecting' portion 38 will project laterally and will engage the lower surface' of the bushing.v 42` or r.a portion 'of the bolt casing V28. lThe la'tf'ch thus retains thevlockingbolt ini-itsv locking' position until the latch is retracted by rotatingthe barrel 44 witha suitablefkey.A vsthe barrel is rotated, the' lower projecting end 45 thereof willpe'nga'g'e the endv wall ofthe slot or recess v3f? formed in' the latclii and f willA retract the latchfromfthe lower-end if the bushing, and the spring, 391 will'torce the bolt upwardly to itsunlockedposition 'i vention has been illustrated and described,

it will be understood that changes and modilications may be made in the construction and in the arrangement of the various ele-- ments Without departing from the scope of the invention, as expressed in the following claims. l

Having described my invention, what I claim and desire to secure by Letters Patent is v l. In combination, a gear casing, shiftable elements mounted therein, locking means for said shift-able elements carried by said casing and comprising a casing, a reciprocable plunger carried by said casing, and adapted to engage said shiftable elements, automatically operable means for retaining said plunger in locked position, a lock member for reti-acting said last named means and a cover carried by said plunger and adapted to actuate the plunger and inclose said locl member.

2. In combination, a gear casing, shitable elements mounted the-rein, locking means `for said shiftable elements carried by said casing and comprising a casing, a reciprocable plunger carried by said casing andA adapted to engage said shiftable elements, automatically operable means for retaining( said plunger in locked position, a lock memberl for. retracting said last named means, and

a cover pivotally connected tothe plungen l and adapted to actuate said plunger and to inclose said lockv member.

8. In a gear shifting mechanism, the comey i binationwith a plurality olongitudinally l shiftable rods, of klocking means therefor, comprising a two-part sleeve, a locking bolt mounted in the sleeve, means for locking and unlocking said bolt, and means securing the i partsof the ysleeve together and to the cas-1.

4. In a gear shifting mechanism, the com# f bination with a gear casing and a plurality of shitable members, of a locking device for sa1d members comprising a sleeve mounted 1n saidgear casing, a cap member therefor detachable therefrom, and means accessible y from the inside of said casing only, connect-` ing said sleeve, cap andl casing. 'n

5. In a gear shifting mechanism, the combination with a gearl casing, of a locking device for the gear shifting members cornl p-rising a tvvo-part` sleeve and means for securing the parts of said sleeve together and to the gear casing.

In testimony whereof I aiiiX' my signature.

; ARA eILs'oN.l 

